The Great and Powerful Trixie and Illusionist Extraordinaire Dazzling Sparkle (Twilight Sparkle) are mistakenly scheduled to share the same stage for their magical acts. Can the two show mares share the spotlight? No, no they can't.

Princess Luna disappears from Equestria with hopes of saving the world and is accompanied by the enigmatic Sombra. Meanwhile, Celestia tries to bury secrets as immortal as she is and Cadance must choose her loyalties carefully...